Restricted-Use Dataset Descriptions & Codebooks

Restricted-use, contractual data are available in the following datasets. Click the dataset title to access the associated codebook(s). Note: the codebooks are compressed (or zipped) files. You will need to open the files with compression software such as 7zip (available to download for free online) in order to view the pdf files.

Add Health respondents who were in the 7th or 8th grade at Wave I were asked at Wave III to identify, from a list of 10 computer-generated names, which ones were current friends or which ones were their friends when they were in school together. This dataset contains the altered identification numbers (AIDs) of the 10 computer-generated names.

This file contains supplemental Wave III contextual data that include transportation and commuting measures, climate descriptors, amenities, and state-level tobacco control influences. These variables are available at the census tract-level unless otherwise specified.

This file contains tract-level measures, based on the Wave IV respondent locations, reported by the U.S. Census Bureau's 2009 American Community Survey (ACS), the Climate Atlas of the United States, the USDA Economics Research Service, Esri Data and Maps, ImpacTeen Tobacco Control policy and Prevalence Data, and the Uniform Crime Reports. When tract level measures were not available or appropriate, state and county level variables were used.

27024-0012

304

15,701

WAVE III SUPPLEMENTAL FILES

To receive the results of their STD assays, Wave III respondents called an Add Health dedicated number at the American Social Health Association. This dataset provides information on who called the results hotline and the date and time of the call.

WEIGHT COMPONENTS

A weight component for each level of sampling (school and adolescents) has been created for each wave of data collection. This file contains the weight components needed for computing multilevel weights for Wave I.

A weight component for each level of sampling (school and adolescents) has been created for each wave of data collection. This file contains the weight components needed for computing multilevel weights for Wave II.

A weight component for each level of sampling (school and adolescents) has been created for each wave of data collection. This file contains the weight components needed for computing multilevel weights for Wave III.

A weight component for each level of sampling (school and adolescents) has been created for each wave of data collection. This file contains the weight components needed for computing multilevel weights for Wave IV.

A weight component for each level of sampling (school and adolescents) has been created for each wave of data collection. This file contains the weight components needed for computing multilevel weights.

The Primary Component contains several types of indicators based on information collected from participating schools and listed directly on student transcripts such as student exit or graduation status and materials gathered from schools during the data collection process.

WAVE I & III OBESITY AND NEIGHBORHOOD ENVIRONMENT (ONE) FILES

This file contains the climate data for Wave I and III respondents based on the nearest climate station. Information is available on precipitation, total snowfall, sky cover, temperature, and total hours of sunshine.

Contains Euclidean distances to both 1990 and 2000 U.S. Census Urbanized Areas (UAs) for each Wave I respondent. Contains the Euclidean distance to 2000 U.S. Census Bureau-defined urbanized areas (UAs) for each Wave III respondent.

The Wave I population density file contains the proportion of 1990 U.S. Census block group population and are (in square meters) within 1, 3, 5, and 8.04672 km (5 mi) of each Wave I respondent. The Wave III population density file contains the proportion of 2000 U.S. Census block group population and area (in square meters) within 1, 3, 5, and 8.04672 km (5 mi) of each Wave III respondent.

These data files define the rural-urban commuting characteristics of Wave I and Wave III respondent locations at the U.S. Census tract-level using the 1990 and 2000 RUCA codes developed by the U.S. department of Agriculture’s Economic Research Service.

POLITICAL CONTEXT FILES

The Add Health Political Context files provide an array of measures that describe the political environments in which Add Health respondents reside. These contextual variables include measures of commuting, election results for gubernatorial, presidential, and senatorial races, and voter registration law.